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VR6 12v Turbo - Going for 550whp - Need Help.

3K views 5 replies 3 participants last post by  need_a_VR6 
#1 ·
Here's my setup:

Stock Bottom End ( Rods with ARP )
SPA Head Gasket Spacer - 8.5 compression ratio - Copper o-ring
Stock intake manifold
ARP Head Bolts
SPA Turbo Manifold T4
Holset 66mm x 64mm Turbo AR .86 T4 Hot side - .70 Cold Side
Fueltech FT500 semi-sequential - Custom Map
1200cc Injectors Running E100
Walbro 450

I've made 430whp @ 1.7bar ( 24psi )

Point is - I'm currently looking for +550whp - but not sure if i'll be able to get there with the stock manifold and head.

Is it necessary to have camshafts, larger valves and ported head to achieve that number?

I would like to hear from you guys.

Thanks
 
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